fix(sdk): allow empty initialize() (#619)

Author: nirga

packages/traceloop-sdk/src/lib/configuration/index.ts

@@ -24,7 +24,7 @@ let _client: TraceloopClient | undefined;
  * });
  * ```
  */
-export const initialize = (options: InitializeOptions) => {
+export const initialize = (options: InitializeOptions = {}) => {
   if (_configuration) {
     return;
   }